A group of Nobel Peace Prize winners has urged their fellow laureate, President Barack Obama, to disclose the United States’ history of using torture against terrorism suspects.

Led by Archbishop Desmond Tutu of South Africa and former President José Ramos-Horta of East Timor, the Nobel laureates want Obama, who won the prize in 2009, to make “full disclosure to the American people of the extent and use of torture.”

That would include releasing the report by the Senate Intelligence Committee on the Central Intelligence Agency’s use of torture last decade against al Qaeda members and others. That report has been held up over disagreements between Democratic senators who want to expose the activities of the CIA’s secret rendition program and the CIA, which has tried to avoid more critical revelations about its agents and contractors who abducted and interrogated detainees. Obama has stood by the CIA in the dispute, causing the report to remain unpublished.

“It remains to be seen whether the United States will turn a blind eye to the effects of its actions on its own people and on the rest of the world, or if it will take the necessary steps to recover the standards on which the country was founded, and to once again adhere to the international conventions it helped to bring into being,” the Nobel laureates wrote.

“When a nation’s leaders condone and even order torture, that nation has lost its way,” they added.